The ClearBlue pregnancy tests are 95% of the time accurate. If it comes back positive, then you are definitely pregnant, however if it comes back negative you may still be pregnant, so you may have to take it again in a few days.
They are over 99% accurate when used on or after the day of your expected period.
As you don't say precisely to which ClearBlue you are referring a visit to this site should answer your questions. http://www.clearplan.com/ According to this site a ClearBlue pregnancy test is 99% accurate if done on the day of a missed period or later.
It should be quite accurate at 3 weeks
ClearBlue pregnancy test is 99% accurate when one used it from the day that her period is due. Therefore to get the most real result one must follow the written instruction carefully which is usually inside in its package.
According to the ClearBlue pregnancy test accuracy results they are: 4 days before expected period= 51% accurate 3 days before expected period= 82% accurate 2 days before expected period= 90% accurate 1 day before expected period =95% accurate the day of expected period =99% accurate
I recommend the Clearblue Digital Pregnancy Test as one of the most accurate options available on the market.
There are several vegan-friendly options for pregnancy tests, such as the First Response Early Result Pregnancy Test and the Clearblue Digital Pregnancy Test. These tests do not contain any animal-derived ingredients and are not tested on animals.
The Clearblue Digital Pregnancy test was first released in September 2008. The one-step Clearblue Digital Pregnancy test makes reading results much easier.
Digital tests are some of the best home pregnancy tests on the market. They are easy to read and have only a small margin of error. However, digital tests are not the most sensitive tests out there and are more likely to give you a false negative unless you wait to test until 14 to 16 days after ovulation.
While home pregnancy tests are very accurate, they are less accurate than a pregnancy test evaluated by a laboratory.
Probably from your local bulk-sell store, for example Costco or Walmart sells many items at once and if one happened to require many pregnancy tests for whatever purpose, go there. As well check online websites as anything and everything is sold online.
I am not sure if they have this brand of pregnancy tests in Australia, but in America According to the ClearBlue pregnancy test accuracy results they are: 4 days before expected period= 51% accurate 3 days before expected period= 82% accurate 2 days before expected period= 90% accurate 1 day before expected period =95% accurate the day of expected period =99% accurate